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Single Family ResidenceResidential
$507,390$208 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026
Last sold for $450,000 on Jan 18, 2022

21421 ROUNDUP WAY

APPLE VALLEY, CA 92308
3
Beds
2
Baths
2,439 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
0.78 ac
Lot SizeThe size of the land the home sits on, from county records.
2004
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$507K
$487K low$528K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$450,000 · Jan 18, 2022
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$178,890
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$143,112
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.67%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$328,500
EVERGREEN MONEYSOURCE MORTGAGE CO · recorded Jan 18, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,659 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$487,095 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$97,419
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$389,676

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.40
10
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
93
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
59
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
3
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
39
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.undetermined

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Modern
CountySAN BERNARDINO
Lot (acres)The size of the land the home sits on, from county records.0.78
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Tile
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 45 ft²

Transaction History(3)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Mariana AcademyF
Elementary · Grades KG–8 · 1.7 mi
H
Apple Valley High SchoolC
High · Grades 9–12 · 3.2 mi

District: Apple Valley Unified School District

Neighborhood · ZIP 92308These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.119
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.378

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.43,558
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.349 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$67,642
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$83,399
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.12 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.68%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

21421 Roundup Way measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Worth more than 81% of homes in Apple Valley 92308
  • Costs less per square foot than 89% of homes in San Bernardino County
  • Bigger than 84% of homes in San Bernardino County
  • Has a bigger lot than 88% of homes in San Bernardino County
  • Newer than 83% of homes in San Bernardino County

What homes are worth in Apple Valley 92308

Each bar is how many homes fall in that price range. The marker is this home.

This home
$209K$727K

This home is worth more than 81% of homes in Apple Valley 92308.

How it measures up in Apple Valley 92308

The dot is this home. The mark in the middle is the typical home in Apple Valley 92308.

Estimated value$507,390
CheaperTypical $397,668Pricier

Pricier than 81% of homes nearby

Price per ft²$208
CheaperTypical $229Pricier

Pricier than 31% of homes nearby

Living area2,439 ft²
SmallerTypical 1,674 ft²Bigger

Bigger than 81% of homes nearby

Lot size0.78 ac
SmallerTypical 0.46 acBigger

Bigger than 76% of homes nearby

Year built2004
OlderTypical 1990Newer

Newer than 74% of homes nearby

How 21421 Roundup Way ranks against every home in each area.
MeasureThis homeApple Valley 92308San Bernardino County
Estimated valuepricier than$507,39081% of homes49% of homes
Price per ft²pricier than$20831% of homes11% of homes
Living areabigger than2,439 ft²81% of homes84% of homes
Lot sizebigger than0.78 ac76% of homes88% of homes
Year builtnewer than200474% of homes83% of homes

About 21421 Roundup Way

How much is 21421 Roundup Way, Apple Valley, CA worth?

The TopHap Estimate for 21421 Roundup Way, Apple Valley, CA is $507,390 as of Jul 14, 2026. The likely range is $486,542 to $528,238. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21421 Roundup Way, Apple Valley, CA last sell?

21421 Roundup Way, Apple Valley, CA last sold on Jan 18, 2022 for $450,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 21421 Roundup Way, Apple Valley, CA?

21421 Roundup Way, Apple Valley, CA has 3 bedrooms, 2 bathrooms, 2,439 square feet of living space and a 0.78-acre lot.

When was 21421 Roundup Way, Apple Valley, CA built?

21421 Roundup Way, Apple Valley, CA was built in 2004, making it 22 years old. It is a modern home. The building has 1 story.

What schools serve 21421 Roundup Way, Apple Valley, CA?

21421 Roundup Way, Apple Valley, CA is assigned to Mariana Academy (elementary), rated F; Apple Valley High School (high), rated C. All sit in Apple Valley Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21421 Roundup Way, Apple Valley, CA compare to other homes in Apple Valley 92308?

Among the 14,717 homes in Apple Valley 92308, it is worth more than 81% of them ($507,390 against a typical $397,668), its price per square foot is higher than 31% of them ($208 against a typical $229), it is bigger than 81% of them (2,439 ft² against a typical 1,674 ft²), its lot is bigger than 76% of them (0.78 ac against a typical 0.46 ac) and it is newer than 74% of them (2004 against a typical 1990). Measured against all of San Bernardino County, it is worth more than 49% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 21421 Roundup Way, Apple Valley, CA?

The 2025 property tax bill for 21421 Roundup Way, Apple Valley, CA was $5,659. The county assessed it at $487,095.

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Assigned schools

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